fix hnsw code format (#1987)

Signed-off-by: Zhonglei Song <szl_84@sina.com>

core/src/index/thirdparty/hnswlib/bruteforce.h

@@ -5,6 +5,7 @@
 #include <algorithm>
 
 namespace hnswlib {
+
 template<typename dist_t>
 class BruteforceSearch : public AlgorithmInterface<dist_t> {
  public:
@@ -83,10 +84,8 @@ namespace hnswlib {
                data_ + size_per_element_ * (cur_element_count-1),
                data_size_+sizeof(labeltype));
         cur_element_count--;
-
     }
 
-
     std::priority_queue<std::pair<dist_t, labeltype >>
     searchKnn(const void *query_data, size_t k) const {
         std::priority_queue<std::pair<dist_t, labeltype >> topResults;
@@ -106,7 +105,6 @@ namespace hnswlib {
                     topResults.pop();
                 lastdist = topResults.top().first;
             }
-
         }
         return topResults;
     };
@@ -143,8 +141,6 @@ namespace hnswlib {
     }
 
     void loadIndex(const std::string &location, SpaceInterface<dist_t> *s) {
-
-
         std::ifstream input(location, std::ios::binary);
         std::streampos position;
 
@@ -163,8 +159,6 @@ namespace hnswlib {
         input.read(data_, maxelements_ * size_per_element_);
 
         input.close();
-
     }
-
 };
 }

core/src/index/thirdparty/hnswlib/hnswalg.h

@@ -16,7 +16,6 @@ typedef unsigned int linklistsizeint;
 
 template<typename dist_t>
 class HierarchicalNSW : public AlgorithmInterface<dist_t> {
-
  public:
     HierarchicalNSW(SpaceInterface<dist_t> *s) {
     }

core/src/index/thirdparty/hnswlib/hnswlib.h

@@ -89,8 +89,6 @@ namespace hnswlib {
         virtual ~AlgorithmInterface(){
         }
     };
-
-
 }
 
 #include "space_l2.h"

core/src/index/thirdparty/hnswlib/space_ip.h

@@ -212,7 +212,6 @@ namespace hnswlib {
 #endif
 
 class InnerProductSpace : public SpaceInterface<float> {
-
     DISTFUNC<float> fstdistfunc_;
     size_t data_size_;
     size_t dim_;
@@ -243,6 +242,4 @@ namespace hnswlib {
 
     ~InnerProductSpace() {}
 };
-
-
 }

core/src/index/thirdparty/hnswlib/space_l2.h

@@ -13,7 +13,6 @@ namespace hnswlib {
         res += t * t;
     }
     return (res);
-
 }
 
 #if defined(USE_AVX)
@@ -143,7 +142,6 @@ namespace hnswlib {
 #endif
 
 class L2Space : public SpaceInterface<float> {
-
     DISTFUNC<float> fstdistfunc_;
     size_t data_size_;
     size_t dim_;
@@ -180,7 +178,6 @@ namespace hnswlib {
 
 static int
 L2SqrI(const void *__restrict pVect1, const void *__restrict pVect2, const void *__restrict qty_ptr) {
-
     size_t qty = *((size_t *) qty_ptr);
     int res = 0;
     unsigned char *a = (unsigned char *) pVect1;
@@ -205,16 +202,12 @@ namespace hnswlib {
         res += ((*a) - (*b)) * ((*a) - (*b));
         a++;
         b++;
-
-
     }
 
     return (res);
-
 }
 
 class L2SpaceI : public SpaceInterface<int> {
-
     DISTFUNC<int> fstdistfunc_;
     size_t data_size_;
     size_t dim_;
@@ -240,5 +233,4 @@ namespace hnswlib {
     ~L2SpaceI() {}
 };
 
-
 }

core/src/index/thirdparty/hnswlib/visited_list_pool.h

@@ -28,6 +28,7 @@ namespace hnswlib {
 
     ~VisitedList() { delete[] mass; }
 };
+
 ///////////////////////////////////////////////////////////
 //
 // Class for multi-threaded pool-management of VisitedLists